Florian Hahn 63150f4639 Revert "Enhance stack protector for calling no return function" ...

This reverts commit 416e8c6ad5.

This commit causes a test failure with expensive checks due to a DT
verification failure. Revert to bring bot back to green:

https://green.lab.llvm.org/green/job/clang-stage1-cmake-RA-expensive/24249/testReport/junit/LLVM/CodeGen_X86/stack_protector_no_return_ll/

+ /Users/buildslave/jenkins/workspace/clang-stage1-cmake-RA-expensive/clang-build/bin/llc /Users/buildslave/jenkins/workspace/clang-stage1-cmake-RA-expensive/llvm-project/llvm/test/CodeGen/X86/stack-protector-no-return.ll -mtriple=x86_64-unknown-linux-gnu -o -
+ /Users/buildslave/jenkins/workspace/clang-stage1-cmake-RA-expensive/clang-build/bin/FileCheck /Users/buildslave/jenkins/workspace/clang-stage1-cmake-RA-expensive/llvm-project/llvm/test/CodeGen/X86/stack-protector-no-return.ll
DominatorTree is different than a freshly computed one!
	Current:
=============================--------------------------------
Inorder Dominator Tree: DFSNumbers invalid: 0 slow queries.
  [1] %entry {4294967295,4294967295} [0]
    [2] %unreachable {4294967295,4294967295} [1]
    [2] %lpad {4294967295,4294967295} [1]
      [3] %invoke.cont {4294967295,4294967295} [2]
        [4] %invoke.cont2 {4294967295,4294967295} [3]
        [4] %SP_return3 {4294967295,4294967295} [3]
        [4] %CallStackCheckFailBlk2 {4294967295,4294967295} [3]
      [3] %lpad1 {4294967295,4294967295} [2]
        [4] %eh.resume {4294967295,4294967295} [3]
          [5] %SP_return6 {4294967295,4294967295} [4]
          [5] %CallStackCheckFailBlk5 {4294967295,4294967295} [4]
        [4] %terminate.lpad {4294967295,4294967295} [3]
          [5] %SP_return9 {4294967295,4294967295} [4]
          [5] %CallStackCheckFailBlk8 {4294967295,4294967295} [4]
    [2] %SP_return {4294967295,4294967295} [1]
    [2] %CallStackCheckFailBlk {4294967295,4294967295} [1]
Roots: %entry

2022-12-02 12:58:46 +00:00

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